The boy finds a magical mirror that is connected to another world. The first chapters are about him going between the two world trying to take the chance to make money. Eventually, with the help of a native couple, he decides to become a merchant and he is introduced to the merchant guild. After asking around, he notices that the best way to protect himself is buying a slave. Then he meets a merchant that sells elves but the price is astronomical so the merchant ask him for a duel where he will need to win to get the slave for free. The duel is about making a political figure accepts a gift from the MC for her 50th birthday.
The gift make her strong like a dragon, with all resistances and body enchantments. However after she conquers the fist labyrith, she is given a skill to make weapons. This skill is so OP that she can make normal weapons without materials (she can’t make magical weapons).
So this man won the lottery and asks to his grandfather what to do with money because he too won the lottery and was filfthy rich.
The granfather says to his niece that he should try to make somebody life happier, if he doesn’t have something he really wants to do and gives him an address where he can buy a slave.
This girl is choosen totally in a random way, and after signing some papers he brings her home.
He is still working as a teacher in a highschool and then he thinks is a good idea to make her “daughter” attend an elementary school since she is a 9 years old.
What I don’t like about the story is the idea of the slave child. The author could simply make an adopted child without bring the slavery in the story, since it’s a bit silly how paperworks would be if it were all “legal”.
Another poor writing is about the fact he won the lottery and asks his granfather that also won the lottery.
Really? What are the chances?
Howerver when rating the novel I thought about the heartwarming feeling that tries to transmit to the reader, trying to not consider what made this story “less” believable.
However the writing is still not good as uchi no musume, so a 4 is good enough, in my opinion.